PLANV                                                       Menu: SOLID / VIEW
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Sets the display to a plan view (xy plane).
(A nested command in the geometric module only.)
(Applicable in both geometric and solid modules.)

Description:
This command displays the plan view of the model (projection on xy plane).
If you are in automatic scaling mode (\auto), the scale will automatically
be adjusted so that the entire model is displayed.
If you are currently in the geometric module or in any of the display modes
set by the \dsmod command in the solid module, the screen will be redrawn
in the appropriate display mode. If you are in the solid module and the
display mode is currently "off", the plan view will not be displayed until
a new display mode is specified, enabling you to execute a series
of manipulations before the screen is redrawn.
